Anti-Submarine Warfare. Capability to detect, track, and engage submarines.

Combined gas turbine and gas turbine propulsion system where two gas turbines drive a single shaft via a combining gearbox.

Military action involving the use of electromagnetic spectrum to disrupt, deceive, or destroy enemy electronic systems.

The upper deck of an aircraft carrier, equipped for aircraft takeoff, landing, and maintenance operations.

Sonar system installed on the hull of a ship, used for underwater detection and navigation by emitting and receiving sound waves.

Radar system using multiple small antennas whose signals are combined to create a steerable beam without physical movement, enabling rapid scanning and tracking of multiple targets.

A system of hydrophones towed behind a vessel to detect submarines and torpedoes, minimizing interference from the ship's self-noise.